For people that were having problems with not being able to add the same Spell/Ability in SGather, here's a way that should help you do that.
Go to the folder where your SGather is, you'll find a file called Settings.xml , righ click it, go to open with, open it with Notepad , scroll down until you find this line
Code:<CombatSpells>
Copy any ability that's already there -with the spaces next to it- and paste it exactly under it.
An example:
Code:<CombatSpells> <string>Frostbolt</string> <string>Frostbolt</string>
Just change the frost bolt to any spell you'd like to spam and it'll work.
That's it. Happy Spamming!
Credit goes to Serialbotter